Inertial Navigation System (INS)

Inertial Navigation System (INS)

Inertial Navigation System (INS)

INS, also known as an inertial guidance system or an inertial navigation instrument, is the main method of long-range navigation for military and commercial aircraft, submarines, spacecraft, guided missiles, and robots.sistem navigasi inersia It uses motion sensors (accelerometers and gyroscopes) and a computer to continuously calculate its position, orientation, and velocity (direction and speed of movement) by dead reckoning without external references such as GPS satellite signals or sightings of terrestrial landmarks. INS requires little maintenance, operates under extreme conditions, and is impervious to jamming or deception, making it an important tool for military forces.

The heart of INS is an inertial platform gyroscopically held parallel to Earth's surface, providing an artificial horizon for attitude measurement and display.sistem navigasi inersia Compensation circuits prevent gyroscopic precession from affecting the inertial platform or the attitude displays. INSs are also used as fall-back systems for backup navigation in the absence of GPS and other external reference sources.

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